Okla. Stat. tit. 47, § 47-11-313: Restrictions on use of controlled-access roadway

The Department of Transportation, the Oklahoma Transportation

Authority, or local authorities may, with respect to any controlled-

access roadway under their respective jurisdictions, prohibit the

use of any such roadway by pedestrians, bicycles or other non-

motorized traffic or by any person operating a motor-driven cycle.

The Department of Transportation, the Oklahoma Transportation

Authority, or local authorities adopting any such prohibitory

regulations shall erect and maintain official signs on the

controlled-access roadway on which such regulations are applicable

and when so erected no person shall disobey the restrictions stated

on such signs.